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Article ; Online: Ultrabroadband High Photoresponsivity at Room Temperature Based on Quasi-1D Pseudogap System (TaSe

Li, Jialin / Li, Qing / Mi, Junjian / Xu, Zhuan / Xie, Yu / Tang, Wei / Zhu, Huanfeng / Li, Linjun / Tong, Limin

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

2023 Volume 11, Issue 7, Page(s) e2302886

Abstract: Narrow bandgap materials have garnered significant attention within the field of broadband photodetection. However, the performance is impeded by diminished absorption near the bandgap, resulting in a rapid decline in photoresponsivity within the mid- ... ...

Abstract	Narrow bandgap materials have garnered significant attention within the field of broadband photodetection. However, the performance is impeded by diminished absorption near the bandgap, resulting in a rapid decline in photoresponsivity within the mid-wave infrared (MWIR) and long-wave infrared (LWIR) regions. Furthermore, they mostly worked in cryogenic temperature. Here, without the assistance of any complex structure and special environment, it is realized high responsivity covering ultra-broadband wavelength range (Ultraviolet (UV) to LWIR) in a single quasi-1D pseudogap (PG) system (TaSe
Language	English
Publishing date	2023-12-08
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2808093-2
ISSN	2198-3844 ; 2198-3844
ISSN (online)	2198-3844
ISSN	2198-3844
DOI	10.1002/advs.202302886
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Van der Waals Antiferroelectric Magnetic Tunnel Junction: A First-Principles Study of a CrSe₂/CuInP₂S₆/CrSe₂ Junction

Bai, Hua / Li, Xinyi / Pan, Hui / He, Pimo / Xu, Zhu-an / Lu, Yunhao

ACS applied materials & interfaces. 2021 Dec. 09, v. 13, no. 50

2021

Abstract: Magnetic tunnel junctions (MTJs), ferroelectric/antiferroelectric tunnel junctions (FTJs/AFTJs), and multiferroic tunnel junctions (MFTJs) have recently attracted significant interest for technological applications of nanoscale memory devices. Until now, ...

Abstract	Magnetic tunnel junctions (MTJs), ferroelectric/antiferroelectric tunnel junctions (FTJs/AFTJs), and multiferroic tunnel junctions (MFTJs) have recently attracted significant interest for technological applications of nanoscale memory devices. Until now, most of them are based on perovskite oxide heterostructures with a relatively high resistance-area (RA) product and low resistance difference unfavorable for practical applications. The recent discovery of the two-dimensional (2D) van der Waals (vdW) ferroelectric (FE) and magnetic materials has opened a new route to realize tunnel junctions with high performance and atomic-scale dimensions. Here, using first-principles calculations, we propose a new type of 2D tunnel junction: an antiferroelectric magnetic tunnel junction (AFMTJ), which inherits the features of both MTJ and AFTJ. This AFMTJ is composed of monolayer CuInP₂S₆ (CIPS) sandwiched between 2D magnetic electrodes of CrSe₂. The AFTJ with nonmagnetic electrodes of TiSe₂ on both sides of CIPS and the asymmetric AFTJ with both CrSe₂ and TiSe₂ electrodes are also investigated. Based on quantum-mechanical modeling of the electronic transport, sizeable tunneling electroresistance effects and multiple nonvolatile resistance states are demonstrated. More importantly, a remarkably low RA product (less than 0.1 Ω·μm²) makes the proposed vdW AFMTJs superior to the conventional MFTJs in terms of their promising nonvolatile memory applications. Our calculations provide new guidance for the experiment and application of nanoscale memory devices.
Keywords	magnetism ; memory ; van der Waals forces
Language	English
Dates of publication	2021-1209
Size	p. 60200-60208.
Publishing place	American Chemical Society
Document type	Article
ISSN	1944-8252
DOI	10.1021/acsami.1c18949
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Van der Waals Antiferroelectric Magnetic Tunnel Junction: A First-Principles Study of a CrSe

Bai, Hua / Li, Xinyi / Pan, Hui / He, Pimo / Xu, Zhu-An / Lu, Yunhao

ACS applied materials & interfaces

2021 Volume 13, Issue 50, Page(s) 60200–60208

Abstract	Magnetic tunnel junctions (MTJs), ferroelectric/antiferroelectric tunnel junctions (FTJs/AFTJs), and multiferroic tunnel junctions (MFTJs) have recently attracted significant interest for technological applications of nanoscale memory devices. Until now, most of them are based on perovskite oxide heterostructures with a relatively high resistance-area (RA) product and low resistance difference unfavorable for practical applications. The recent discovery of the two-dimensional (2D) van der Waals (vdW) ferroelectric (FE) and magnetic materials has opened a new route to realize tunnel junctions with high performance and atomic-scale dimensions. Here, using first-principles calculations, we propose a new type of 2D tunnel junction: an antiferroelectric magnetic tunnel junction (AFMTJ), which inherits the features of both MTJ and AFTJ. This AFMTJ is composed of monolayer CuInP
Language	English
Publishing date	2021-12-09
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.1c18949
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Characteristics of symptomatic plaque on high-resolution magnetic resonance imaging and its relationship with the occurrence and recurrence of ischemic stroke.

Zhao, Jie-Ji / Lu, Yue / Cui, Jun-Yi / Ma, Lin-Qing / Zhang, Run-Ping / Xu, Zhuan

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

2021 Volume 42, Issue 9, Page(s) 3605–3613

Abstract: Background: Atherosclerosis is the most common cause of ischemia stroke. Computed tomographic angiography (CTA) and digital subtraction angiography (DSA) are used to evaluate the degree of lumen stenosis. However, these examinations are invasive and can ...

Abstract	Background: Atherosclerosis is the most common cause of ischemia stroke. Computed tomographic angiography (CTA) and digital subtraction angiography (DSA) are used to evaluate the degree of lumen stenosis. However, these examinations are invasive and can only reveal mild to moderate stenosis. High-resolution magnetic resonance imaging (HRMRI) seems a more intuitive way to show the pathological changes of vascular wall. Hence, we conducted a systematic retrospective study to determine the characteristics of symptomatic plaques in patients with intracranial atherosclerosis on HRMRI and their association with the occurrence and recurrence of ischemic stroke events. Methods: The PubMed database was searched for relevant studies reported from January 31, 2010, to October 31, 2020. Results: We selected 14 clinical outcome studies. We found that plaque enhancement and positive remodeling on HRMRI indicate symptomatic plaques. Besides, intraplaque hemorrhage and positive remodeling index are closely related to the occurrence of stroke. However, it is still controversial whether the initial enhancement of plaque and the occurrence and recurrence of stroke are related. There is also no significant correlation between vascular stenosis and symptomatic plaque or the occurrence and recurrence of ischemic stroke. Conclusion: High-resolution magnetic resonance imaging can be used as an assessment tool to predict the risk of stroke onset and recurrence in patients with atherosclerosis, but further research is also needed.
MeSH term(s)	Brain Ischemia/complications ; Brain Ischemia/diagnostic imaging ; Brain Ischemia/epidemiology ; Humans ; Intracranial Arteriosclerosis/complications ; Intracranial Arteriosclerosis/diagnostic imaging ; Ischemic Stroke ; Magnetic Resonance Angiography ; Magnetic Resonance Imaging ; Plaque, Atherosclerotic/diagnostic imaging ; Retrospective Studies ; Stroke/diagnostic imaging ; Stroke/epidemiology
Language	English
Publishing date	2021-07-08
Publishing country	Italy
Document type	Journal Article ; Review
ZDB-ID	2016546-8
ISSN	1590-3478 ; 1590-1874
ISSN (online)	1590-3478
ISSN	1590-1874
DOI	10.1007/s10072-021-05457-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Jg. 1995 - 2021: Lesesall (1.OG)
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Article: Tunable Topological Energy Bands in 2D Dialkali-Metal Monoxides.

Hua, Chenqiang / Li, Si / Xu, Zhu-An / Zheng, Yi / Yang, Shengyuan A / Lu, Yunhao

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

2020 Volume 7, Issue 4, Page(s) 1901939

Abstract: 2D materials with nontrivial energy bands are highly desirable for exploring various topological phases of matter, as low dimensionality opens unprecedented opportunities for manipulating the quantum states. Here, it is reported that monolayer (ML) ... ...

Abstract	2D materials with nontrivial energy bands are highly desirable for exploring various topological phases of matter, as low dimensionality opens unprecedented opportunities for manipulating the quantum states. Here, it is reported that monolayer (ML) dialkali-metal monoxides, in the well-known 2H-MoS
Language	English
Publishing date	2020-01-07
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2808093-2
ISSN	2198-3844
ISSN	2198-3844
DOI	10.1002/advs.201901939
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Article ; Online: Spin-Lattice Coupled Metamagnetism in Frustrated van der Waals Magnet CrOCl.

Zhang, Minjie / Hu, Qifeng / Huang, Yuqiang / Hua, Chenqiang / Cheng, Man / Liu, Zhou / Song, Shijie / Wang, Fanggui / Lu, Hengzhe / He, Pimo / Cao, Guang-Han / Xu, Zhu-An / Lu, Yunhao / Yang, Jinbo / Zheng, Yi

Small (Weinheim an der Bergstrasse, Germany)

2023 Volume 19, Issue 33, Page(s) e2300964

Abstract: The long-range magnetic ordering in frustrated magnetic systems is stabilized by coupling magnetic moments to various degrees of freedom, for example, by enhancing magnetic anisotropy via lattice distortion. Here, the unconventional spin-lattice coupled ... ...

Abstract	The long-range magnetic ordering in frustrated magnetic systems is stabilized by coupling magnetic moments to various degrees of freedom, for example, by enhancing magnetic anisotropy via lattice distortion. Here, the unconventional spin-lattice coupled metamagnetic properties of atomically-thin CrOCl, a van der Waals antiferromagnet with inherent magnetic frustration rooted in the staggered square lattice, are reported. Using temperature- and angle-dependent tunneling magnetoconductance (TMC), in complementary with magnetic torque and first-principles calculations, the antiferromagnetic (AFM)-to-ferrimagnetic (FiM) metamagnetic transitions (MTs) of few-layer CrOCl are revealed to be triggered by collective magnetic moment flipping rather than the established spin-flop mechanism, when external magnetic field (H) enforces a lattice reconstruction interlocked with the five-fold periodicity of the FiM phase. The spin-lattice coupled MTs are manifested by drastic jumps in TMC, which show anomalous upshifts at the transition thresholds and persist much higher above the AFM Néel temperature. While the MTs exhibit distinctive triaxial anisotropy, reflecting divergent magnetocrystalline anisotropy of the c-axis AFM ground state, the resulting FiM phase has an a-c easy plane in which the magnetization axis is freely rotated by H. At the 2D limit, such a field-tunable FiM phase may provide unique opportunities to explore exotic emergent phenomena and novel spintronics devices.
Language	English
Publishing date	2023-04-17
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2168935-0
ISSN	1613-6829 ; 1613-6810
ISSN (online)	1613-6829
ISSN	1613-6810
DOI	10.1002/smll.202300964
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Article: Possible Evidence for Berezinskii-Kosterlitz-Thouless Transition in Ba(Fe

Jiao, Wen-He / Xu, Xiao-Feng / Jiang, Hao / Xu, Zhu-An / Chen, Qing-Hu / Cao, Guang-Han

Materials (Basel, Switzerland)

2021 Volume 14, Issue 21

Abstract: In this study, we measure the in-plane transport properties of high-quality Ba( ... ...

Abstract	In this study, we measure the in-plane transport properties of high-quality Ba(Fe
Language	English
Publishing date	2021-10-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma14216294
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Article ; Online: Inhibition of the Otub1/c-Maf axis by the herbal acevaltrate induces myeloma cell apoptosis.

Sun, Tong / Xu, Yujia / Xu, Zhuan / Cao, Biyin / Zhang, Zubin / Wang, Qi / Kong, Yan / Mao, Xinliang

Cell communication and signaling : CCS

2021 Volume 19, Issue 1, Page(s) 24

Abstract: Background: The oncogenic transcript factor c-Maf is stabilized by the deubiquitinase Otub1 and promotes myeloma cell proliferation and confers to chemoresistance. Inhibition of the Otub1/c-Maf axis is a promising therapeutic target, but there are no ... ...

Abstract	Background: The oncogenic transcript factor c-Maf is stabilized by the deubiquitinase Otub1 and promotes myeloma cell proliferation and confers to chemoresistance. Inhibition of the Otub1/c-Maf axis is a promising therapeutic target, but there are no inhibitors reported on this specific axis. Methods: A luciferase assay was applied to screen potential inhibitors of Otub1/c-Maf. Annexin V staining/flow cytometry was applied to evaluate cell apoptosis. Immunoprecipitation was applied to examine protein ubiquitination and interaction. Xenograft models in nude mice were used to evaluate anti-myeloma activity of AVT. Results: Acevaltrate (AVT), isolated from Valeriana glechomifolia, was identified based on a bioactive screen against the Otub1/c-Maf/luciferase system. AVT disrupts the interaction of Otub1/c-Maf thus inhibiting Otub1 activity and leading to c-Maf polyubiquitination and subsequent degradation in proteasomes. Consistently, AVT inhibits c-Maf transcriptional activity and downregulates the expression of its target genes key for myeloma growth and survival. Moreover, AVT displays potent anti-myeloma activity by triggering myeloma cell apoptosis in vitro and impairing myeloma xenograft growth in vivo but presents no marked toxicity. Conclusions: The natural product AVT inhibits the Otub1/c-Maf axis and displays potent anti-myeloma activity. Given its great safety and efficacy, AVT could be further developed for MM treatment. Video Abstract.
MeSH term(s)	Animals ; Antineoplastic Agents, Phytogenic/pharmacology ; Antineoplastic Agents, Phytogenic/therapeutic use ; Apoptosis/drug effects ; Cell Line ; Cell Survival/drug effects ; Cysteine Endopeptidases/genetics ; Cysteine Endopeptidases/metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Cysteine Proteinase Inhibitors/therapeutic use ; Female ; Humans ; Iridoids/pharmacology ; Iridoids/therapeutic use ; Mice, Inbred BALB C ; Mice, Nude ; Multiple Myeloma/drug therapy ; Multiple Myeloma/metabolism ; Multiple Myeloma/pathology ; Proto-Oncogene Proteins c-maf/antagonists & inhibitors ; Proto-Oncogene Proteins c-maf/genetics ; Proto-Oncogene Proteins c-maf/metabolism ; Mice
Chemical Substances	Antineoplastic Agents, Phytogenic ; Cysteine Proteinase Inhibitors ; Iridoids ; Maf protein, mouse ; Proto-Oncogene Proteins c-maf ; Cysteine Endopeptidases (EC 3.4.22.-) ; Otub1 protein, mouse (EC 3.4.22.-) ; acevaltrate (S9MFK45GY9)
Language	English
Publishing date	2021-02-24
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2126315-2
ISSN	1478-811X ; 1478-811X
ISSN (online)	1478-811X
ISSN	1478-811X
DOI	10.1186/s12964-020-00676-w
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Article ; Online: Insertable cardiac monitors for detection of atrial fibrillation after cryptogenic stroke: a meta-analysis.

Lu, Yue / Diao, Shan-Shan / Huang, Shuang-Jiao / Zhao, Jie-Ji / Ye, Meng-Fan / Yao, Fei-Rong / Kong, Yan / Xu, Zhuan

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

2021 Volume 42, Issue 10, Page(s) 4139–4148

Abstract: Background: In recent years, the implantable cardiac monitors (ICM) have enhanced the recognition ability of atrial fibrillation (AF), which makes ICM have a new application in AF detection. We conducted a meta-analysis to determine the total incidence ... ...

Abstract	Background: In recent years, the implantable cardiac monitors (ICM) have enhanced the recognition ability of atrial fibrillation (AF), which makes ICM have a new application in AF detection. We conducted a meta-analysis to determine the total incidence of newly found AF detected by ICM after cryptogenic stroke and to evaluate the factors related to the detection of AF. Methods: A literature search was conducted in the PubMed, EMBASE, Web of Science, and Cochrane library databases until March 1, 2020. Studies that reported the detection rate of AF using ICM in cryptogenic stroke patients with negative initial AF screening were analyzed. Results: A total of 23 studies were included. The overall proportion of AF detected by ICM in cryptogenic stroke patients was 25% (95% confidence interval [CI], 22-29%). The rate of AF detected by ICM was independently related to both cardiac monitoring time (coefficient = 0.0003; 95% CI, 0.0001-0.0005; P = 0.0001) and CHA Conclusions: The longer the time of ICM monitoring after cryptogenic stroke, the higher the detection rate of AF. Further research is still needed to determine the optimal duration of long-term cardiac monitoring.
MeSH term(s)	Atrial Fibrillation/complications ; Atrial Fibrillation/diagnosis ; Atrial Fibrillation/epidemiology ; Electrocardiography, Ambulatory ; Humans ; Ischemic Stroke ; Stroke/complications ; Stroke/diagnosis ; Stroke/epidemiology ; Time Factors
Language	English
Publishing date	2021-02-02
Publishing country	Italy
Document type	Journal Article ; Meta-Analysis
ZDB-ID	2016546-8
ISSN	1590-3478 ; 1590-1874
ISSN (online)	1590-3478
ISSN	1590-1874
DOI	10.1007/s10072-021-05104-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The relationship between COVID-19's severity and ischemic stroke: a systematic review and meta-analysis.

Lu, Yue / Zhao, Jie-Ji / Ye, Meng-Fan / Li, Hong-Mei / Yao, Fei-Rong / Kong, Yan / Xu, Zhuan

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology

2021 Volume 42, Issue 7, Page(s) 2645–2651

Abstract: Objective: We aim to determine the risk of acute ischemic stroke in patients with severe and non-severe coronavirus disease 2019 (COVID-19).: Methods: A literature search was conducted in the PubMed, Embase, Web of Science, and Cochrane Library ... ...

Abstract	Objective: We aim to determine the risk of acute ischemic stroke in patients with severe and non-severe coronavirus disease 2019 (COVID-19). Methods: A literature search was conducted in the PubMed, Embase, Web of Science, and Cochrane Library databases until October 28, 2020. Studies covering COVID-19's severity classification data and COVID-19 patients with acute ischemic stroke were included. Two independent evaluators extracted data, and the random effects model was used to calculate the risk ratios (RR) and 95% confidence interval (95% CI) of acute ischemic stroke associated with COVID-19's severity. Results: A total of 8 studies were included, involving 5266 patients. Among all COVID-19 patients, the total incidence of ischemic stroke was 1.76% (95% CI: 0.82-3.01). Severe patients have an increased risk of acute ischemic stroke compared with non-severe patients (RR = 3.53, 95% CI: 2.06-6.07, P < 0.0001; I Conclusions: This meta-analysis shows that the severe course of COVID-19 is associated with an increased risk of acute ischemic stroke.
MeSH term(s)	Brain Ischemia/complications ; Brain Ischemia/epidemiology ; COVID-19 ; Humans ; Ischemic Stroke ; SARS-CoV-2 ; Stroke/epidemiology
Language	English
Publishing date	2021-05-05
Publishing country	Italy
Document type	Journal Article ; Meta-Analysis ; Systematic Review
ZDB-ID	2016546-8
ISSN	1590-3478 ; 1590-1874
ISSN (online)	1590-3478
ISSN	1590-1874
DOI	10.1007/s10072-021-05299-8
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